//
//  VisitorLoginView.swift
//  WeChat
//
//  Created by 梁迪 on 15/12/13.
//  Copyright © 2015年 梁迪. All rights reserved.
//

import UIKit

//定义协议
@objc protocol VisitorLoginViewDelegate:NSObjectProtocol{
    
    optional func userWillLogin()
    func userWillRegister()
    
    
}


class VisitorLoginView: UIView {
    weak var visitorLoginViewDelegate: VisitorLoginViewDelegate?
    

    
    func setupInfo(tipText:String,imageName:String?){
        tipLabel.text = tipText
        if let name = imageName{
        circleView.image = UIImage(named: name)
            largeIcon.hidden = true
            bringSubviewToFront(circleView)
            
        
        
        }else{
            
            
            startAnimation()
        }
        
        
        
    }
    
    private func startAnimation() {
        let anim = CABasicAnimation(keyPath: "transform.rotation")
        //设置动画属性
        anim.repeatCount = MAXFLOAT
        anim.duration = 20.0
        anim.toValue = 2 * M_PI
        //当动画完毕或者页面失去活跃状态动画不移除图层
        anim.removedOnCompletion = false
        //添加动画
        circleView.layer.addAnimation(anim, forKey: nil)
    }
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupUI()
    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    
 private func setupUI(){
    addSubview(circleView)
    addSubview(backView)
    addSubview(largeIcon)
    
    addSubview(tipLabel)
    addSubview(registerBtn)
    addSubview(loginBtn)
    // 使用手码添加约束,需要屏蔽 frame布局
    
    for subView in subviews{
        
    subView.translatesAutoresizingMaskIntoConstraints = false
    
    }
    addConstraint(NSLayoutConstraint(item: largeIcon, attribute: .CenterX, relatedBy:.Equal, toItem: self, attribute: .CenterX, multiplier: 1, constant: 0))
    addConstraint(NSLayoutConstraint(item: largeIcon, attribute: .CenterY, relatedBy: .Equal, toItem: self, attribute: .CenterY, multiplier: 1, constant: -60))
    
    //添加圆圈的约束
    addConstraint(NSLayoutConstraint(item: circleView, attribute: .CenterX, relatedBy: .Equal, toItem: largeIcon, attribute: .CenterX, multiplier: 1, constant: 0))
    
    addConstraint(NSLayoutConstraint(item: circleView, attribute: .CenterY, relatedBy: .Equal, toItem: largeIcon, attribute: .CenterY, multiplier: 1, constant: 0))
    
    
    
    
    addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .CenterX, relatedBy: .Equal, toItem: circleView, attribute: .CenterX, multiplier: 1, constant: 0))
    addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Top, relatedBy: .Equal, toItem: circleView, attribute: .Bottom, multiplier: 1, constant: 16))
    //If your equation does not have a second view and attribute, use nil and NSLayoutAttributeNotAnAttribute.
    addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 230))
    addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 40))
    
    //按钮的约束
    
    addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Left, relatedBy: .Equal, toItem: tipLabel, attribute: .Left, multiplier: 1, constant: 0))
    addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Top, relatedBy: .Equal, toItem: tipLabel, attribute: .Bottom, multiplier: 1, constant: 20))
    //If your equation does not have a second view and attribute, use nil and NSLayoutAttributeNotAnAttribute.
    addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 100))
    addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 35))
    
    
    addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Right, relatedBy: .Equal, toItem: tipLabel, attribute: .Right, multiplier: 1, constant: 0))
    addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Top, relatedBy: .Equal, toItem: tipLabel, attribute: .Bottom, multiplier: 1, constant: 20))
    //If your equation does not have a second view and attribute, use nil and NSLayoutAttributeNotAnAttribute.
    addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 100))
    addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 35))
    
    //设置背景视图的约束 可视化的布局语言
    //OC 中可选项 一般使用 按位 或枚举选项  swift中直接指定数组
    //metrics:约束数值字典 [String: 数值],
//    addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-0-[backView]-0-|", options: [], metrics: nil, views: ["backView": backView]))
//    
//    addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[backView]-(-35)-[regBtn]", options: [], metrics: nil, views: ["backView": backView,"regBtn":registerBtn]))
//    
//    //设置视图的背景颜色
//    //UIColor(white: <#T##CGFloat#>, alpha: <#T##CGFloat#>) 设置灰度颜色
//    backgroundColor = UIColor(white: 0.93, alpha: 1)
    
//    addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-0-[backView]-0-|", options:[], metrics: nil, views: ["backView":backView]))
//    
//    addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[backView]-(-35)-[regBtn]", options:[], metrics: nil, views: ["backView":backView,"regBtn":registerBtn]))
      addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-0-[backView]-0-|", options: [], metrics: nil, views: ["backView": backView]))
    
    addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[backView]-(-55)-[regBtn]", options: [], metrics: nil, views: ["backView": backView,"regBtn":registerBtn]))
    
backgroundColor = UIColor(white: 0.93, alpha: 1)
    
    
    
    //添加按钮点击时间
    registerBtn.addTarget(self, action: "registerBtnDidClick", forControlEvents: .TouchUpInside)
    
   loginBtn.addTarget(self, action: "loginBtnDidClick", forControlEvents: .TouchUpInside)
    
    }
    
    //添加按钮监听事件
    @objc private func registerBtnDidClick(){
        visitorLoginViewDelegate?.userWillRegister()
        
    }
    
    @objc private func loginBtnDidClick(){
        visitorLoginViewDelegate?.userWillLogin?()
        
    }
    
    
    //懒加载所有视图
    private lazy var backView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))
    
    private lazy var largeIcon:UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))
    private lazy var circleView:UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_smallicon"))
    
    
    private lazy var tipLabel:UILabel = {
        let l = UILabel()
        
        l.text = "关注一些人，回这里看看有什么惊喜,关注一些人，回这里看看有什么惊喜"
        l.textColor = UIColor.darkGrayColor()
        l.textAlignment = .Center
        l.font = UIFont.systemFontOfSize(14)
        l.sizeToFit()
        return l
    }()
    
    private lazy var registerBtn: UIButton = {
        let btn = UIButton()
        btn.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: .Normal)
        btn.setTitle("注册", forState: .Normal)
        btn.titleLabel?.font = UIFont.systemFontOfSize(15)
        btn.setTitleColor(themeColor, forState: .Normal)
        btn.sizeToFit()
        return btn
    }()
    
    private lazy var loginBtn:UIButton = {
       let btn = UIButton()
        btn.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: .Normal)
        
        btn.setTitle("登录", forState: .Normal)
        btn.titleLabel?.font = UIFont.systemFontOfSize(15)
        btn.setTitleColor(themeColor, forState: .Normal)
        btn.sizeToFit()

        return btn
        
        
        
    }()
    

}
